This paper presents a methodology to reduce the power consumption, silicon area, as well as increasing the performance, in digital filters that are feasible for wireless communication circuitries. The method is based on arithmetic reductions in a wave digital filter. Basically, the multipliers are removed to reduce the number of arithmetic operations. All parameters including the dynamic and stati

This contribution outlines an XML format for representation of differential-algebraic equations (DAE) models obtained from continuous time Modelica models and possibly also from other equation-based modeling languages. The purpose is to offer a standardized model exchange format which is based on the DAE formalism and which is neutral with respect to model usage. Many usages of models go beyond wh

Our society is becoming more and more dependent upon the reliable function of a number of vital socio-technical systems. These systems are often being referred to as critical infrastructures, or lifeline systems, indicating their importance for supporting a nation’s economy and social well-being. In the present paper a method is presented for assessing the capability of those actors involved in re

Efter ett par terminers erfarenhets med en lättare variant av samarbetslärande inom matematikundervisningen på LTH, har försöket utvärderats via en enkät. I utvärderingen fokuserade vi på genusaspekten för att försöka ge svar till frågan om kvinnliga och manliga teknologer hade olika inställning till arbetssättet. Resultaten visar att det finns ett överlag positivt mottagande till metodiken bland

Freshly ejaculated human semen has the appearance of a loose gel in which the predominant structural protein components are the seminal vesicle-secreted semenogelins (Sg). The primary structure of the 439-residue SgI has previously been obtained by cDNA cloning. This cDNA cross-hybridizes to a larger transcript coding for a second secretory protein, SgII. Here we report the almost complete structu

In many cases it is desired to have both high capacity and small antennas in wireless communication systems. Unfortunately, the antenna performance deteriorate when the antennas get electrically small. In this paper fundamental limitations from antenna theory and broadband matching are used to analyze the spectral eciency of an arbitrary antenna inserted inside a sphere.

Visionen Design för Alla kan berikas genom att inriktningen på genomtänkta statiska lösningar kompletteras med ett design-för-alla-tänkande också för det dynamiska och situationsbundna. Själva görandet i stunden öppnar för nya möjligheter genom att handlingspotentialen och därmed även tillgängligheten bestäms i själva aktiviteten. Beskrivning och makt är nära förknippade med varandra, och en besk

Xilinx FPGAs offer both Block SelectRAM and distributed RAM for embedded memory. To investigate the impact of utilizing such opportunities, some variations on the hardware implementation of a SNOW 2.0 stream cipher IP core have been designed. We find the ratio of throughput and effective slice usage to be close to 3.5. This allows a flexible trade-off between speed and area consumption, with a thr